Non-slipping tire.



.M. IVIAN.

APPLICATION FILED JULY??? l 9 0 3.

UNITED STATES PATENT OFFICE...

, Specification of Letters Patent.

Patented Sept. 4, 1906.

Application filed July 27, 1903. Serial No. 167,193-

To all whom it may concern:'

Be it known that I, MARK VIVIAN, a subject of the King of Great Britain, residing at Ghiswick, in' the county of Middlesex, London, England, have invented a new and use- 1 Improvement in or Relating to Non- Slipping Tires, of which the following is a specification.

This invention relates to improvements in or relating to non-slipping tires, and has for its main object to construct a' tire or the tread thereof of different degrees of hardness or vulcanization in order to obviate the tend ency to side slip or skid.

In order that my invention may be readily understood, reference is hereby made to the accompanying sheet of illustrative drawing, wherein the figure is a side elevational view of a portion of a tire formed in accordance with my invention.

In carrying my invention into practice I formthe tire a of alternate sections 5 c of different degrees of hardness or flexibility,

such sections running either obliquely for diagonally, as shown, or they may be arranged in a-parallel or transverse or other convenient manner or pattern. The said tire may be formed of caoutchouc, indiarubber, gum-elastic, or any other similar elastic substance or material. In the case of pneumatic tires an inner air-tube (1 may be employed, or the tire may be of the tubeless; kind.

A convenient method of manufacturing the tire is by taking the rubber or its equivalent in a semifluid or viscous state and arranging same in alternatesections side by side, as aforesaid, certain of such sections being afterward hardened or vulcanized to the requisite degree and the other ones (prefs erably those occurring alternately) to a less or greater degree, as found desirable or convenient. After the evaporation of the solvent employed is completed the several sections will be joined together at their meeting edges, so as to form the tire in one piece. The tire or non-slipping band can also be produced by cementing together at their meeting edges alternate rubber or similar sections or strips of different degrees of hardness; Any suitable process of vulcanizing can be employed to harden the rubber or its equivalent to the various degrees required.

What I claim as my invention, and desire to secure by Letters Patent of the United States, is

1. In a non-slipping tire or tread, the combination with sections or strips of hard rubber of interposed strips or sections of softer rubber, such alternate sections being united chemically durin manufacture at their meeting edges to orm a continuous insepa rable piece having a perfectly smooth or flush surface which contacts with the ground, substantially as specified.

2. As an article of manufacture a non slipping tread for application to existing tires, said tread being composed of alternate sections of hard and soft rubber united at their meeting edges during the process of manufacture and in a non-mechanical manner, said tread havingsa perfectly flush or smooth surface and the: said sections so arranged as to cause at'leasttwo of them to contact with the groundysimultaneojusly, substantially as s ecified.

In testimony w ereof I have hereunto set my hand in the presence of two subscribing Witnesses.

MARK VIVIAN.

Witnesses: Y

ALFD. A. THORNTON, H. A. WOODBRIDGE. 

